GeForce GT 820M
Radeon Vega 3 3020e
GeForce GT 820M vs Radeon Vega 3 3020e Performance Spectrum
About G3D Mark
G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.
GeForce GT 820M vs Radeon Vega 3 3020e FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with Ryzen 7 9800X3D to isolate GPU performance.
Search any supported game below to compare 1080p FPS for both components.
Path of Exile 2
Counter-Strike 2
League of Legends
Valorant
Among Us
Apex Legends
ARC Raiders
Baldur's Gate 3
Call of Duty: Black Ops 6
GeForce GT 820M vs Radeon Vega 3 3020e: Pros, Cons & Final Verdict
See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.
GeForce GT 820M
2014Why buy it
- ✅0.5% more average FPS across 50 tracked games in our benchmark data.
- ✅100+% more VRAM for high-resolution textures and newer games (512 MB vs Unknown).
- ✅Radeon Vega 3 3020e is already obsolete for modern gaming, so GeForce GT 820M is the less risky modern option long term.
Trade-offs
- ❌2014 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
Radeon Vega 3 3020e
2018Why buy it
- ✅More future proof: GCN 5.0 (2017−2020) on 14nm with a newer platform for upcoming games.
Trade-offs
- ❌Lower average FPS than GeForce GT 820M across 50 tracked games in our benchmark data.
- ❌Less VRAM, with Unknown vs 512 MB for high-resolution textures and newer games.
- ❌2018 hardware with Unknown of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
Quick Answers
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GeForce GT 820M vs Radeon Vega 3 3020e Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
GeForce GT 820M
The GeForce GT 820M is manufactured by NVIDIA. It was released in October 7 2014. It features the Maxwell 2.0 architecture. The core clock ranges from 1038 MHz to 1127 MHz. It has 1536 shading units. The thermal design power (TDP) is 100W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 542 points.
Radeon Vega 3 3020e
The Radeon Vega 3 3020e is manufactured by AMD. It was released in November 14 2018. It features the GCN 5.0 architecture. The core clock ranges from 815 MHz to 1283 MHz. It has 1280 shading units. The thermal design power (TDP) is 100W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 535 points.
Graphics Performance
The GeForce GT 820M scores 542 and the Radeon Vega 3 3020e reaches 535 in the G3D Mark benchmark — just a 1.3% difference, making them near-identical in rasterization performance. The GeForce GT 820M is built on Maxwell 2.0 while the Radeon Vega 3 3020e uses GCN 5.0, both on 28 nm vs 14 nm. Shader units: 1,536 (GeForce GT 820M) vs 1,280 (Radeon Vega 3 3020e). Raw compute: 1.659 TFLOPS (GeForce GT 820M) vs 3.284 TFLOPS (Radeon Vega 3 3020e). Boost clocks: 1127 MHz vs 1283 MHz.
| Feature | GeForce GT 820M | Radeon Vega 3 3020e |
|---|---|---|
| G3D Mark Score | 542+1% | 535 |
| Architecture | Maxwell 2.0 | GCN 5.0 |
| Process Node | 28 nm | 14 nm |
| Shading Units | 1536+20% | 1280 |
| Compute (TFLOPS) | 1.659 TFLOPS | 3.284 TFLOPS+98% |
| Boost Clock | 1127 MHz | 1283 MHz+14% |
| ROPs | 64+100% | 32 |
| TMUs | 96+20% | 80 |
| L1 Cache | 576 KB+80% | 320 KB |
| L2 Cache | 2 MB+100% | 1 MB |
Advanced Features (DLSS/FSR)
The GeForce GT 820M gets NVIDIA DLSS, which still tends to look cleaner in motion. The Radeon Vega 3 3020e leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.
| Feature | GeForce GT 820M | Radeon Vega 3 3020e |
|---|---|---|
| Upscaling Tech | Upscaling support | FSR Upscaling / FSR 4 |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | NVIDIA Reflex | AMD Anti-Lag |
Video Memory (VRAM)
The GeForce GT 820M has 512 MB of VRAM, while the Radeon Vega 3 3020e carries 0 MB. GeForce GT 820M gives you 100+% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 64-bit on the GeForce GT 820M and System on the Radeon Vega 3 3020e. L2 Cache: 2 MB (GeForce GT 820M) vs 1 MB (Radeon Vega 3 3020e) — the GeForce GT 820M has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce GT 820M | Radeon Vega 3 3020e |
|---|---|---|
| VRAM Capacity | 0.5 GB | Shared System RAM |
| Memory Type | GDDR5 | Shared |
| Memory Bandwidth | Unknown | System |
| Bus Width | 64-bit | System |
| L2 Cache | 2 MB+100% | 1 MB |
Display & API Support
DirectX support: 11.0 (GeForce GT 820M) vs 12 (12_1) (Radeon Vega 3 3020e). Vulkan: None vs 1.2. OpenGL: 4.0 vs 4.6. Maximum simultaneous displays: 1 vs 3.
| Feature | GeForce GT 820M | Radeon Vega 3 3020e |
|---|---|---|
| DirectX | 11.0 | 12 (12_1)+9% |
| Vulkan | None | 1.2 |
| OpenGL | 4.0 | 4.6+15% |
| Max Displays | 1 | 3+200% |
Media & Encoding
Hardware encoder: No (GeForce GT 820M) vs VCN 1.0 (Radeon Vega 3 3020e). Decoder: PureVideo HD VP4 vs VCN 1.0. Supported codecs: MPEG-2,H.264,VC-1,MPEG-4 ASP (GeForce GT 820M) vs H.264,H.265,VP9 (Radeon Vega 3 3020e).
| Feature | GeForce GT 820M | Radeon Vega 3 3020e |
|---|---|---|
| Encoder | No | VCN 1.0 |
| Decoder | PureVideo HD VP4 | VCN 1.0 |
| Codecs | MPEG-2,H.264,VC-1,MPEG-4 ASP | H.264,H.265,VP9 |
Power & Dimensions
The GeForce GT 820M draws 100W versus the Radeon Vega 3 3020e's 100W — a 0% difference. The Radeon Vega 3 3020e is more power-efficient. Recommended PSU: 350W (GeForce GT 820M) vs 1W (Radeon Vega 3 3020e). Power connectors: PCIe-powered vs Integrated.
| Feature | GeForce GT 820M | Radeon Vega 3 3020e |
|---|---|---|
| TDP | 100W | 100W |
| Recommended PSU | 350W | 1W-100% |
| Power Connector | PCIe-powered | Integrated |
| Length | 0mm | — |
| Height | 0mm | — |
| Slots | 0 | — |
| Temp (Load) | 70°C | — |
| Perf/Watt | 5.4+2% | 5.3 |
Value Analysis
The newer card here is Radeon Vega 3 3020e (2018 vs 2014).
| Feature | GeForce GT 820M | Radeon Vega 3 3020e |
|---|---|---|
| MSRP | — | $0 |
| Codename | GM204 | Vega 12 |
| Release | October 7 2014 | November 14 2018 |
| Ranking | #344 | #435 |
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